So it looks like when the aftermarket radio was put in, they re-routed the speaker cables to the front. Not sure why the DSP amp still has some wires going into it. Also, strangely, the subwoofer is connected but it seems like it's just wired up like a regular speaker.


Probably going to get a separate small amp to run the subwoofer and try and clean up this wiring.

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2003 X5 3.0i MT, White, 161k